Papers, Addresses, Reports: Patterns of Cell Death in Stalks of Normal and Injured Sorghum; Oxygen Absorption by Coal. Some Observations on Oil Treatment; A Computer Program for Meteorologic Data Reduction; Geographical Approaches to 7th...

Papers, Addresses, Reports: On Popularizing Science; Geology of the Joliet District; The Genus Peperomia in Northeastern South America; The American Bithynia Not Wholly an Introduced Species; Growth of Diatoms in Relation to Dissolved Gases;...

Papers: Forest Communities in a Natural Site at Union Hill, and Comparisons With Other Forests in Illinois; The Vegetation of an Abandoned Road After a Half Century of Development; Helminths of Three Sympatric Species of Cave-Dwelling...

Papers, Addresses, Reports: Evolution of Sex in the Mollusca (Address of the Retiring President); The 1937 Flood in Southern Illinois; Extract From the Report of the Section Chairman (Agriculture); Evening Schools for Adult Farmers; The Art and...

Papers, Addresses, Reports: The Mucous Membrane of the Nose (Address of the Retiring President); The Endocrine Glands; Extract From the Report of the Secretary (Agriculture); Preliminary Studies in milk; Extract From the Report of the Section...

Papers, Addresses, Reports: Conservation Research Program of the Illinois Natural History Survey (Presidential Address); The Betatron; Excerpts from Lecture, "A Naturalist in the South Seas"; Extract from the Report of the Section Chairman...

Papers, Addresses, Reports: Let the Chips Fall Where They May; The Fish Population of a Spring-fed Stream System in Southern Illinois; Fishing Pressure and Fishing Success at Argyle Lake, McDonough County, Illinois, as Indicated by Creel...

Papers, Addresses, Reports: Applied Science as it Affects our Engineering; Looking Through Great Telescopes; John Wolf, Illinois Naturalist; Extract from the Report of the Section Chairman (Agriculture); Influence of age on the value of seed...